Method using semaphores for synchronizing communication between

Details Method using semaphores for synchronizing communication between Method using semaphores for synchronizing communication between

1992-03-24

1994-05-17

Chan, Eddie P.

Boots, shoes, and leggings

364DIG1, 3642281, 3642417, 3642645, 3642646, 364280, 364271, 395700, 395325, G06F 946, G06F 1300

Patent

active

053136381

ABSTRACT:
A communication method suitable for use between programs operating at different privilege levels in a processor utilizes shared memory which includes a plurality of memory slots for containing messages to be exchanged and message queue. The synchronization of the programs and access to the shared memory is controlled a number of semaphores. Each slot is provided with its own semaphore ana three additional semaphores are provided to synchronize operation.

REFERENCES:
patent: 4374409 (1983-02-01), Bienvenu et al.
patent: 5036459 (1991-07-01), den Haan et al.
patent: 5109515 (1992-04-01), Laggis et al.
patent: 5133053 (1992-07-01), Johnson et al.

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